runtime.h revision 5710ceac03e2cf7a164ad7393b5a6b6114ea45e6 
1// Copyright 2012 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28#ifndef V8_RUNTIME_H_
29#define V8_RUNTIME_H_
30
31#include "allocation.h"
32#include "zone.h"
33
34namespace v8 {
35namespace internal {
36
37// The interface to C++ runtime functions.
38
39// ----------------------------------------------------------------------------
40// RUNTIME_FUNCTION_LIST_ALWAYS defines runtime calls available in both
41// release and debug mode.
42// This macro should only be used by the macro RUNTIME_FUNCTION_LIST.
43
44// WARNING: RUNTIME_FUNCTION_LIST_ALWAYS_* is a very large macro that caused
45// MSVC Intellisense to crash.  It was broken into two macros to work around
46// this problem. Please avoid large recursive macros whenever possible.
47#define RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \
48  /* Property access */ \
49  F(GetProperty, 2, 1) \
50  F(KeyedGetProperty, 2, 1) \
51  F(DeleteProperty, 3, 1) \
52  F(HasLocalProperty, 2, 1) \
53  F(HasProperty, 2, 1) \
54  F(HasElement, 2, 1) \
55  F(IsPropertyEnumerable, 2, 1) \
56  F(GetPropertyNames, 1, 1) \
57  F(GetPropertyNamesFast, 1, 1) \
58  F(GetLocalPropertyNames, 1, 1) \
59  F(GetLocalElementNames, 1, 1) \
60  F(GetInterceptorInfo, 1, 1) \
61  F(GetNamedInterceptorPropertyNames, 1, 1) \
62  F(GetIndexedInterceptorElementNames, 1, 1) \
63  F(GetArgumentsProperty, 1, 1) \
64  F(ToFastProperties, 1, 1) \
65  F(ToSlowProperties, 1, 1) \
66  F(FinishArrayPrototypeSetup, 1, 1) \
67  F(SpecialArrayFunctions, 1, 1) \
68  F(GetDefaultReceiver, 1, 1) \
69  \
70  F(GetPrototype, 1, 1) \
71  F(IsInPrototypeChain, 2, 1) \
72  \
73  F(GetOwnProperty, 2, 1) \
74  \
75  F(IsExtensible, 1, 1) \
76  F(PreventExtensions, 1, 1)\
77  \
78  /* Utilities */ \
79  F(CheckIsBootstrapping, 0, 1) \
80  F(GetRootNaN, 0, 1) \
81  F(Call, -1 /* >= 2 */, 1) \
82  F(Apply, 5, 1) \
83  F(GetFunctionDelegate, 1, 1) \
84  F(GetConstructorDelegate, 1, 1) \
85  F(NewArgumentsFast, 3, 1) \
86  F(NewStrictArgumentsFast, 3, 1) \
87  F(LazyCompile, 1, 1) \
88  F(LazyRecompile, 1, 1) \
89  F(NotifyDeoptimized, 1, 1) \
90  F(NotifyOSR, 0, 1) \
91  F(DeoptimizeFunction, 1, 1) \
92  F(RunningInSimulator, 0, 1) \
93  F(OptimizeFunctionOnNextCall, -1, 1) \
94  F(GetOptimizationStatus, 1, 1) \
95  F(GetOptimizationCount, 1, 1) \
96  F(CompileForOnStackReplacement, 1, 1) \
97  F(SetNewFunctionAttributes, 1, 1) \
98  F(AllocateInNewSpace, 1, 1) \
99  F(SetNativeFlag, 1, 1) \
100  F(StoreArrayLiteralElement, 5, 1) \
101  \
102  /* Array join support */ \
103  F(PushIfAbsent, 2, 1) \
104  F(ArrayConcat, 1, 1) \
105  \
106  /* Conversions */ \
107  F(ToBool, 1, 1) \
108  F(Typeof, 1, 1) \
109  \
110  F(StringToNumber, 1, 1) \
111  F(StringFromCharCodeArray, 1, 1) \
112  F(StringParseInt, 2, 1) \
113  F(StringParseFloat, 1, 1) \
114  F(StringToLowerCase, 1, 1) \
115  F(StringToUpperCase, 1, 1) \
116  F(StringSplit, 3, 1) \
117  F(CharFromCode, 1, 1) \
118  F(URIEscape, 1, 1) \
119  F(URIUnescape, 1, 1) \
120  F(QuoteJSONString, 1, 1) \
121  F(QuoteJSONStringComma, 1, 1) \
122  F(QuoteJSONStringArray, 1, 1) \
123  \
124  F(NumberToString, 1, 1) \
125  F(NumberToStringSkipCache, 1, 1) \
126  F(NumberToInteger, 1, 1) \
127  F(NumberToIntegerMapMinusZero, 1, 1) \
128  F(NumberToJSUint32, 1, 1) \
129  F(NumberToJSInt32, 1, 1) \
130  F(NumberToSmi, 1, 1) \
131  F(AllocateHeapNumber, 0, 1) \
132  \
133  /* Arithmetic operations */ \
134  F(NumberAdd, 2, 1) \
135  F(NumberSub, 2, 1) \
136  F(NumberMul, 2, 1) \
137  F(NumberDiv, 2, 1) \
138  F(NumberMod, 2, 1) \
139  F(NumberUnaryMinus, 1, 1) \
140  F(NumberAlloc, 0, 1) \
141  \
142  F(StringAdd, 2, 1) \
143  F(StringBuilderConcat, 3, 1) \
144  F(StringBuilderJoin, 3, 1) \
145  F(SparseJoinWithSeparator, 3, 1) \
146  \
147  /* Bit operations */ \
148  F(NumberOr, 2, 1) \
149  F(NumberAnd, 2, 1) \
150  F(NumberXor, 2, 1) \
151  F(NumberNot, 1, 1) \
152  \
153  F(NumberShl, 2, 1) \
154  F(NumberShr, 2, 1) \
155  F(NumberSar, 2, 1) \
156  \
157  /* Comparisons */ \
158  F(NumberEquals, 2, 1) \
159  F(StringEquals, 2, 1) \
160  \
161  F(NumberCompare, 3, 1) \
162  F(SmiLexicographicCompare, 2, 1) \
163  F(StringCompare, 2, 1) \
164  \
165  /* Math */ \
166  F(Math_acos, 1, 1) \
167  F(Math_asin, 1, 1) \
168  F(Math_atan, 1, 1) \
169  F(Math_atan2, 2, 1) \
170  F(Math_ceil, 1, 1) \
171  F(Math_cos, 1, 1) \
172  F(Math_exp, 1, 1) \
173  F(Math_floor, 1, 1) \
174  F(Math_log, 1, 1) \
175  F(Math_pow, 2, 1) \
176  F(Math_pow_cfunction, 2, 1) \
177  F(RoundNumber, 1, 1) \
178  F(Math_sin, 1, 1) \
179  F(Math_sqrt, 1, 1) \
180  F(Math_tan, 1, 1) \
181  \
182  /* Regular expressions */ \
183  F(RegExpCompile, 3, 1) \
184  F(RegExpExec, 4, 1) \
185  F(RegExpExecMultiple, 4, 1) \
186  F(RegExpInitializeObject, 5, 1) \
187  F(RegExpConstructResult, 3, 1) \
188  \
189  /* JSON */ \
190  F(ParseJson, 1, 1) \
191  \
192  /* Strings */ \
193  F(StringCharCodeAt, 2, 1) \
194  F(StringIndexOf, 3, 1) \
195  F(StringLastIndexOf, 3, 1) \
196  F(StringLocaleCompare, 2, 1) \
197  F(SubString, 3, 1) \
198  F(StringReplaceRegExpWithString, 4, 1) \
199  F(StringReplaceOneCharWithString, 3, 1) \
200  F(StringMatch, 3, 1) \
201  F(StringTrim, 3, 1) \
202  F(StringToArray, 2, 1) \
203  F(NewStringWrapper, 1, 1) \
204  \
205  /* Numbers */ \
206  F(NumberToRadixString, 2, 1) \
207  F(NumberToFixed, 2, 1) \
208  F(NumberToExponential, 2, 1) \
209  F(NumberToPrecision, 2, 1)
210
211#define RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \
212  /* Reflection */ \
213  F(FunctionSetInstanceClassName, 2, 1) \
214  F(FunctionSetLength, 2, 1) \
215  F(FunctionSetPrototype, 2, 1) \
216  F(FunctionSetReadOnlyPrototype, 1, 1) \
217  F(FunctionGetName, 1, 1) \
218  F(FunctionSetName, 2, 1) \
219  F(FunctionNameShouldPrintAsAnonymous, 1, 1) \
220  F(FunctionMarkNameShouldPrintAsAnonymous, 1, 1) \
221  F(FunctionBindArguments, 4, 1) \
222  F(BoundFunctionGetBindings, 1, 1) \
223  F(FunctionRemovePrototype, 1, 1) \
224  F(FunctionGetSourceCode, 1, 1) \
225  F(FunctionGetScript, 1, 1) \
226  F(FunctionGetScriptSourcePosition, 1, 1) \
227  F(FunctionGetPositionForOffset, 2, 1) \
228  F(FunctionIsAPIFunction, 1, 1) \
229  F(FunctionIsBuiltin, 1, 1) \
230  F(GetScript, 1, 1) \
231  F(CollectStackTrace, 3, 1) \
232  F(GetV8Version, 0, 1) \
233  \
234  F(ClassOf, 1, 1) \
235  F(SetCode, 2, 1) \
236  F(SetExpectedNumberOfProperties, 2, 1) \
237  \
238  F(CreateApiFunction, 1, 1) \
239  F(IsTemplate, 1, 1) \
240  F(GetTemplateField, 2, 1) \
241  F(DisableAccessChecks, 1, 1) \
242  F(EnableAccessChecks, 1, 1) \
243  \
244  /* Dates */ \
245  F(DateCurrentTime, 0, 1) \
246  F(DateParseString, 2, 1) \
247  F(DateLocalTimezone, 1, 1) \
248  F(DateToUTC, 1, 1) \
249  F(DateMakeDay, 2, 1) \
250  F(DateSetValue, 3, 1) \
251  \
252  /* Numbers */ \
253  \
254  /* Globals */ \
255  F(CompileString, 1, 1) \
256  F(GlobalPrint, 1, 1) \
257  \
258  /* Eval */ \
259  F(GlobalReceiver, 1, 1) \
260  F(ResolvePossiblyDirectEval, 5, 2) \
261  \
262  F(SetProperty, -1 /* 4 or 5 */, 1) \
263  F(DefineOrRedefineDataProperty, 4, 1) \
264  F(DefineOrRedefineAccessorProperty, 5, 1) \
265  F(IgnoreAttributesAndSetProperty, -1 /* 3 or 4 */, 1) \
266  \
267  /* Arrays */ \
268  F(RemoveArrayHoles, 2, 1) \
269  F(GetArrayKeys, 2, 1) \
270  F(MoveArrayContents, 2, 1) \
271  F(EstimateNumberOfElements, 1, 1) \
272  \
273  /* Getters and Setters */ \
274  F(LookupAccessor, 3, 1) \
275  \
276  /* Literals */ \
277  F(MaterializeRegExpLiteral, 4, 1)\
278  F(CreateObjectLiteral, 4, 1) \
279  F(CreateObjectLiteralShallow, 4, 1) \
280  F(CreateArrayLiteral, 3, 1) \
281  F(CreateArrayLiteralShallow, 3, 1) \
282  \
283  /* Harmony proxies */ \
284  F(CreateJSProxy, 2, 1) \
285  F(CreateJSFunctionProxy, 4, 1) \
286  F(IsJSProxy, 1, 1) \
287  F(IsJSFunctionProxy, 1, 1) \
288  F(GetHandler, 1, 1) \
289  F(GetCallTrap, 1, 1) \
290  F(GetConstructTrap, 1, 1) \
291  F(Fix, 1, 1) \
292  \
293  /* Harmony sets */ \
294  F(SetInitialize, 1, 1) \
295  F(SetAdd, 2, 1) \
296  F(SetHas, 2, 1) \
297  F(SetDelete, 2, 1) \
298  \
299  /* Harmony maps */ \
300  F(MapInitialize, 1, 1) \
301  F(MapGet, 2, 1) \
302  F(MapSet, 3, 1) \
303  \
304  /* Harmony weakmaps */ \
305  F(WeakMapInitialize, 1, 1) \
306  F(WeakMapGet, 2, 1) \
307  F(WeakMapSet, 3, 1) \
308  \
309  /* Statements */ \
310  F(NewClosure, 3, 1) \
311  F(NewObject, 1, 1) \
312  F(NewObjectFromBound, 1, 1) \
313  F(FinalizeInstanceSize, 1, 1) \
314  F(Throw, 1, 1) \
315  F(ReThrow, 1, 1) \
316  F(ThrowReferenceError, 1, 1) \
317  F(StackGuard, 0, 1) \
318  F(Interrupt, 0, 1) \
319  F(PromoteScheduledException, 0, 1) \
320  \
321  /* Contexts */ \
322  F(NewFunctionContext, 1, 1) \
323  F(PushWithContext, 2, 1) \
324  F(PushCatchContext, 3, 1) \
325  F(PushBlockContext, 2, 1) \
326  F(DeleteContextSlot, 2, 1) \
327  F(LoadContextSlot, 2, 2) \
328  F(LoadContextSlotNoReferenceError, 2, 2) \
329  F(StoreContextSlot, 4, 1) \
330  \
331  /* Declarations and initialization */ \
332  F(DeclareGlobals, 3, 1) \
333  F(DeclareContextSlot, 4, 1) \
334  F(InitializeVarGlobal, -1 /* 2 or 3 */, 1) \
335  F(InitializeConstGlobal, 2, 1) \
336  F(InitializeConstContextSlot, 3, 1) \
337  F(OptimizeObjectForAddingMultipleProperties, 2, 1) \
338  \
339  /* Debugging */ \
340  F(DebugPrint, 1, 1) \
341  F(DebugTrace, 0, 1) \
342  F(TraceEnter, 0, 1) \
343  F(TraceExit, 1, 1) \
344  F(Abort, 2, 1) \
345  /* Logging */ \
346  F(Log, 2, 1) \
347  /* ES5 */ \
348  F(LocalKeys, 1, 1) \
349  /* Cache suport */ \
350  F(GetFromCache, 2, 1) \
351  \
352  /* Message objects */ \
353  F(NewMessageObject, 2, 1) \
354  F(MessageGetType, 1, 1) \
355  F(MessageGetArguments, 1, 1) \
356  F(MessageGetStartPosition, 1, 1) \
357  F(MessageGetScript, 1, 1) \
358  \
359  /* Pseudo functions - handled as macros by parser */ \
360  F(IS_VAR, 1, 1) \
361  \
362  /* expose boolean functions from objects-inl.h */ \
363  F(HasFastSmiOnlyElements, 1, 1) \
364  F(HasFastElements, 1, 1) \
365  F(HasFastDoubleElements, 1, 1) \
366  F(HasDictionaryElements, 1, 1) \
367  F(HasExternalPixelElements, 1, 1) \
368  F(HasExternalArrayElements, 1, 1) \
369  F(HasExternalByteElements, 1, 1) \
370  F(HasExternalUnsignedByteElements, 1, 1) \
371  F(HasExternalShortElements, 1, 1) \
372  F(HasExternalUnsignedShortElements, 1, 1) \
373  F(HasExternalIntElements, 1, 1) \
374  F(HasExternalUnsignedIntElements, 1, 1) \
375  F(HasExternalFloatElements, 1, 1) \
376  F(HasExternalDoubleElements, 1, 1) \
377  F(TransitionElementsSmiToDouble, 1, 1) \
378  F(TransitionElementsDoubleToObject, 1, 1) \
379  F(HaveSameMap, 2, 1) \
380  /* profiler */ \
381  F(ProfilerResume, 0, 1) \
382  F(ProfilerPause, 0, 1)
383
384
385#ifdef ENABLE_DEBUGGER_SUPPORT
386#define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F) \
387  /* Debugger support*/ \
388  F(DebugBreak, 0, 1) \
389  F(SetDebugEventListener, 2, 1) \
390  F(Break, 0, 1) \
391  F(DebugGetPropertyDetails, 2, 1) \
392  F(DebugGetProperty, 2, 1) \
393  F(DebugPropertyTypeFromDetails, 1, 1) \
394  F(DebugPropertyAttributesFromDetails, 1, 1) \
395  F(DebugPropertyIndexFromDetails, 1, 1) \
396  F(DebugNamedInterceptorPropertyValue, 2, 1) \
397  F(DebugIndexedInterceptorElementValue, 2, 1) \
398  F(CheckExecutionState, 1, 1) \
399  F(GetFrameCount, 1, 1) \
400  F(GetFrameDetails, 2, 1) \
401  F(GetScopeCount, 2, 1) \
402  F(GetScopeDetails, 4, 1) \
403  F(DebugPrintScopes, 0, 1) \
404  F(GetThreadCount, 1, 1) \
405  F(GetThreadDetails, 2, 1) \
406  F(SetDisableBreak, 1, 1) \
407  F(GetBreakLocations, 1, 1) \
408  F(SetFunctionBreakPoint, 3, 1) \
409  F(SetScriptBreakPoint, 3, 1) \
410  F(ClearBreakPoint, 1, 1) \
411  F(ChangeBreakOnException, 2, 1) \
412  F(IsBreakOnException, 1, 1) \
413  F(PrepareStep, 3, 1) \
414  F(ClearStepping, 0, 1) \
415  F(DebugEvaluate, 6, 1) \
416  F(DebugEvaluateGlobal, 4, 1) \
417  F(DebugGetLoadedScripts, 0, 1) \
418  F(DebugReferencedBy, 3, 1) \
419  F(DebugConstructedBy, 2, 1) \
420  F(DebugGetPrototype, 1, 1) \
421  F(DebugSetScriptSource, 2, 1) \
422  F(SystemBreak, 0, 1) \
423  F(DebugDisassembleFunction, 1, 1) \
424  F(DebugDisassembleConstructor, 1, 1) \
425  F(FunctionGetInferredName, 1, 1) \
426  F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \
427  F(LiveEditGatherCompileInfo, 2, 1) \
428  F(LiveEditReplaceScript, 3, 1) \
429  F(LiveEditReplaceFunctionCode, 2, 1) \
430  F(LiveEditFunctionSourceUpdated, 1, 1) \
431  F(LiveEditFunctionSetScript, 2, 1) \
432  F(LiveEditReplaceRefToNestedFunction, 3, 1) \
433  F(LiveEditPatchFunctionPositions, 2, 1) \
434  F(LiveEditCheckAndDropActivations, 2, 1) \
435  F(LiveEditCompareStrings, 2, 1) \
436  F(GetFunctionCodePositionFromSource, 2, 1) \
437  F(ExecuteInDebugContext, 2, 1) \
438  \
439  F(SetFlags, 1, 1) \
440  F(CollectGarbage, 1, 1) \
441  F(GetHeapUsage, 0, 1) \
442  \
443  /* LiveObjectList support*/ \
444  F(HasLOLEnabled, 0, 1) \
445  F(CaptureLOL, 0, 1) \
446  F(DeleteLOL, 1, 1) \
447  F(DumpLOL, 5, 1) \
448  F(GetLOLObj, 1, 1) \
449  F(GetLOLObjId, 1, 1) \
450  F(GetLOLObjRetainers, 6, 1) \
451  F(GetLOLPath, 3, 1) \
452  F(InfoLOL, 2, 1) \
453  F(PrintLOLObj, 1, 1) \
454  F(ResetLOL, 0, 1) \
455  F(SummarizeLOL, 3, 1)
456
457#else
458#define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F)
459#endif
460
461#ifdef DEBUG
462#define RUNTIME_FUNCTION_LIST_DEBUG(F) \
463  /* Testing */ \
464  F(ListNatives, 0, 1)
465#else
466#define RUNTIME_FUNCTION_LIST_DEBUG(F)
467#endif
468
469// ----------------------------------------------------------------------------
470// RUNTIME_FUNCTION_LIST defines all runtime functions accessed
471// either directly by id (via the code generator), or indirectly
472// via a native call by name (from within JS code).
473
474#define RUNTIME_FUNCTION_LIST(F) \
475  RUNTIME_FUNCTION_LIST_ALWAYS_1(F) \
476  RUNTIME_FUNCTION_LIST_ALWAYS_2(F) \
477  RUNTIME_FUNCTION_LIST_DEBUG(F) \
478  RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F)
479
480// ----------------------------------------------------------------------------
481// INLINE_FUNCTION_LIST defines all inlined functions accessed
482// with a native call of the form %_name from within JS code.
483// Entries have the form F(name, number of arguments, number of return values).
484#define INLINE_FUNCTION_LIST(F) \
485  F(IsSmi, 1, 1)                                                             \
486  F(IsNonNegativeSmi, 1, 1)                                                  \
487  F(IsArray, 1, 1)                                                           \
488  F(IsRegExp, 1, 1)                                                          \
489  F(IsConstructCall, 0, 1)                                                   \
490  F(CallFunction, -1 /* receiver + n args + function */, 1)                  \
491  F(ArgumentsLength, 0, 1)                                                   \
492  F(Arguments, 1, 1)                                                         \
493  F(ValueOf, 1, 1)                                                           \
494  F(SetValueOf, 2, 1)                                                        \
495  F(DateField, 2 /* date object, field index */, 1)                          \
496  F(StringCharFromCode, 1, 1)                                                \
497  F(StringCharAt, 2, 1)                                                      \
498  F(ObjectEquals, 2, 1)                                                      \
499  F(RandomHeapNumber, 0, 1)                                                  \
500  F(IsObject, 1, 1)                                                          \
501  F(IsFunction, 1, 1)                                                        \
502  F(IsUndetectableObject, 1, 1)                                              \
503  F(IsSpecObject, 1, 1)                                                      \
504  F(IsStringWrapperSafeForDefaultValueOf, 1, 1)                              \
505  F(MathPow, 2, 1)                                                           \
506  F(MathSin, 1, 1)                                                           \
507  F(MathCos, 1, 1)                                                           \
508  F(MathTan, 1, 1)                                                           \
509  F(MathSqrt, 1, 1)                                                          \
510  F(MathLog, 1, 1)                                                           \
511  F(IsRegExpEquivalent, 2, 1)                                                \
512  F(HasCachedArrayIndex, 1, 1)                                               \
513  F(GetCachedArrayIndex, 1, 1)                                               \
514  F(FastAsciiArrayJoin, 2, 1)
515
516
517// ----------------------------------------------------------------------------
518// INLINE_AND_RUNTIME_FUNCTION_LIST defines all inlined functions accessed
519// with a native call of the form %_name from within JS code that also have
520// a corresponding runtime function, that is called for slow cases.
521// Entries have the form F(name, number of arguments, number of return values).
522#define INLINE_RUNTIME_FUNCTION_LIST(F) \
523  F(ClassOf, 1, 1)                                                           \
524  F(StringCharCodeAt, 2, 1)                                                  \
525  F(Log, 3, 1)                                                               \
526  F(StringAdd, 2, 1)                                                         \
527  F(SubString, 3, 1)                                                         \
528  F(StringCompare, 2, 1)                                                     \
529  F(RegExpExec, 4, 1)                                                        \
530  F(RegExpConstructResult, 3, 1)                                             \
531  F(GetFromCache, 2, 1)                                                      \
532  F(NumberToString, 1, 1)
533
534
535//---------------------------------------------------------------------------
536// Runtime provides access to all C++ runtime functions.
537
538class RuntimeState {
539 public:
540  StaticResource<StringInputBuffer>* string_input_buffer() {
541    return &string_input_buffer_;
542  }
543  unibrow::Mapping<unibrow::ToUppercase, 128>* to_upper_mapping() {
544    return &to_upper_mapping_;
545  }
546  unibrow::Mapping<unibrow::ToLowercase, 128>* to_lower_mapping() {
547    return &to_lower_mapping_;
548  }
549  StringInputBuffer* string_input_buffer_compare_bufx() {
550    return &string_input_buffer_compare_bufx_;
551  }
552  StringInputBuffer* string_input_buffer_compare_bufy() {
553    return &string_input_buffer_compare_bufy_;
554  }
555  StringInputBuffer* string_locale_compare_buf1() {
556    return &string_locale_compare_buf1_;
557  }
558  StringInputBuffer* string_locale_compare_buf2() {
559    return &string_locale_compare_buf2_;
560  }
561
562 private:
563  RuntimeState() {}
564  // Non-reentrant string buffer for efficient general use in the runtime.
565  StaticResource<StringInputBuffer> string_input_buffer_;
566  unibrow::Mapping<unibrow::ToUppercase, 128> to_upper_mapping_;
567  unibrow::Mapping<unibrow::ToLowercase, 128> to_lower_mapping_;
568  StringInputBuffer string_input_buffer_compare_bufx_;
569  StringInputBuffer string_input_buffer_compare_bufy_;
570  StringInputBuffer string_locale_compare_buf1_;
571  StringInputBuffer string_locale_compare_buf2_;
572
573  friend class Isolate;
574  friend class Runtime;
575
576  DISALLOW_COPY_AND_ASSIGN(RuntimeState);
577};
578
579
580class Runtime : public AllStatic {
581 public:
582  enum FunctionId {
583#define F(name, nargs, ressize) k##name,
584    RUNTIME_FUNCTION_LIST(F)
585#undef F
586#define F(name, nargs, ressize) kInline##name,
587    INLINE_FUNCTION_LIST(F)
588    INLINE_RUNTIME_FUNCTION_LIST(F)
589#undef F
590    kNumFunctions,
591    kFirstInlineFunction = kInlineIsSmi
592  };
593
594  enum IntrinsicType {
595    RUNTIME,
596    INLINE
597  };
598
599  // Intrinsic function descriptor.
600  struct Function {
601    FunctionId function_id;
602    IntrinsicType intrinsic_type;
603    // The JS name of the function.
604    const char* name;
605
606    // The C++ (native) entry point.  NULL if the function is inlined.
607    byte* entry;
608
609    // The number of arguments expected. nargs is -1 if the function takes
610    // a variable number of arguments.
611    int nargs;
612    // Size of result.  Most functions return a single pointer, size 1.
613    int result_size;
614  };
615
616  static const int kNotFound = -1;
617
618  // Add symbols for all the intrinsic function names to a StringDictionary.
619  // Returns failure if an allocation fails.  In this case, it must be
620  // retried with a new, empty StringDictionary, not with the same one.
621  // Alternatively, heap initialization can be completely restarted.
622  MUST_USE_RESULT static MaybeObject* InitializeIntrinsicFunctionNames(
623      Heap* heap, Object* dictionary);
624
625  // Get the intrinsic function with the given name, which must be a symbol.
626  static const Function* FunctionForSymbol(Handle<String> name);
627
628  // Get the intrinsic function with the given FunctionId.
629  static const Function* FunctionForId(FunctionId id);
630
631  static Handle<String> StringReplaceOneCharWithString(Isolate* isolate,
632                                                       Handle<String> subject,
633                                                       Handle<String> search,
634                                                       Handle<String> replace,
635                                                       bool* found,
636                                                       int recursion_limit);
637
638  // General-purpose helper functions for runtime system.
639  static int StringMatch(Isolate* isolate,
640                         Handle<String> sub,
641                         Handle<String> pat,
642                         int index);
643
644  static bool IsUpperCaseChar(RuntimeState* runtime_state, uint16_t ch);
645
646  // TODO(1240886): Some of the following methods are *not* handle safe, but
647  // accept handle arguments. This seems fragile.
648
649  // Support getting the characters in a string using [] notation as
650  // in Firefox/SpiderMonkey, Safari and Opera.
651  MUST_USE_RESULT static MaybeObject* GetElementOrCharAt(Isolate* isolate,
652                                                         Handle<Object> object,
653                                                         uint32_t index);
654
655  MUST_USE_RESULT static MaybeObject* SetObjectProperty(
656      Isolate* isolate,
657      Handle<Object> object,
658      Handle<Object> key,
659      Handle<Object> value,
660      PropertyAttributes attr,
661      StrictModeFlag strict_mode);
662
663  MUST_USE_RESULT static MaybeObject* ForceSetObjectProperty(
664      Isolate* isolate,
665      Handle<JSObject> object,
666      Handle<Object> key,
667      Handle<Object> value,
668      PropertyAttributes attr);
669
670  MUST_USE_RESULT static MaybeObject* ForceDeleteObjectProperty(
671      Isolate* isolate,
672      Handle<JSReceiver> object,
673      Handle<Object> key);
674
675  MUST_USE_RESULT static MaybeObject* GetObjectProperty(
676      Isolate* isolate,
677      Handle<Object> object,
678      Handle<Object> key);
679
680  // This function is used in FunctionNameUsing* tests.
681  static Object* FindSharedFunctionInfoInScript(Isolate* isolate,
682                                                Handle<Script> script,
683                                                int position);
684
685  // Helper functions used stubs.
686  static void PerformGC(Object* result);
687
688  // Used in runtime.cc and hydrogen's VisitArrayLiteral.
689  static Handle<Object> CreateArrayLiteralBoilerplate(
690      Isolate* isolate,
691      Handle<FixedArray> literals,
692      Handle<FixedArray> elements);
693};
694
695
696//---------------------------------------------------------------------------
697// Constants used by interface to runtime functions.
698
699class DeclareGlobalsEvalFlag:     public BitField<bool,         0, 1> {};
700class DeclareGlobalsNativeFlag:   public BitField<bool,         1, 1> {};
701class DeclareGlobalsLanguageMode: public BitField<LanguageMode, 2, 2> {};
702
703} }  // namespace v8::internal
704
705#endif  // V8_RUNTIME_H_
706